Exp = log (total/principal) / n*years
where n is compounding periods per year (2)
exp = log (<span>2,835.48 / </span><span>2,310.72) / 2 * 5
</span>exp =
log(<span>
<span>
<span>
1.2270980474
) / 10
exp = </span> </span></span>0.088879265045 / 10
<span>exp = </span>0.0088879265045
rate = (10^exp -1) * n
rate =
<span>
<span>
<span>
1.0206760553
</span>
</span>
</span>
-1 * n
rate =
<span>.0206760553 * 2
</span>
<span>
<span>
<span>
rate = 0.0413521106
</span>
rate = </span></span><span><span><span>4.13521106
</span>
%
Use this calculator to check it:
http://www.1728.org/compint.htm
</span> </span>
Answer:
<u>The answer is option C. 6a-7</u>
Step-by-step explanation:
Given that
5(3a-1)-2(3a-2)=3(a+2)+v
Solve for v
∴ v = 5(3a-1)-2(3a-2) - 3(a+2)
∴ v = 15a - 5 - 6a + 4 - 3a - 6
∴ v = 15a - 6a - 3a - 5 + 4 - 6
∴ v = 6a - 7
<u>So the answer is option C. 6a-7</u>
You didn't specify 10 what. However, a yard is equal to 36 inches, or about 3 feet.
<span>k= Keisha
k + 6=
John</span>
<span>
k + k + 6
= 4k</span>
<span>
2k + 6 ( - 2k)
= 4k ( - 2k)</span>
<span>
6 = 2k</span>
<span>
3 =
k
(Keisha= 3 years old)</span>
<span>
k + 6 = 9
(John = 9 years old)
</span>
3 + 3 + 6 = 4 (3)
<span>
12 = 12
</span><span>So
we made the pawn represent Keisha’s age.
Then we knew that John is 6 years older than Keisha so we represented
his age with a pawn plus 6. This went on 1 side of the equation because it said
that together they equal 4 times Keisha’s age. So on the other side of the
equation we put 4 pawns because we are using each pawn as Keisha’s age. Then we subtracted the pawns from each side
to keep the equation balanced. So we had
that 2 pawns equal 6, which means that each pawn equals 3 so Keisha is 3 years
old. Since John is 6 years older than
Keisha, he must be 9 years old. We
checked our work and substituted 6 in for each pawn and found that 12 equals
12, so our equation is balanced.
</span>
Hope this helps :)
Step-by-step explanation:
let George money will be X and Albert be Y
30$+x=y
x-50$=5y
30+x=y
x=y-30
(y-30)-50=5y
y-80=5y
y-5y=80
-4y=80
y=-20
x=-50